PC shows 2 networks, it has only 1 cable

January 4, 2011 at 08:48:38
Specs: Windows 7
One of our office´s PC is connected to the network and shows 2 networks, but we have only one modem and one router....and no internet access only in that computer. I had restarted, disconnected, shut down and nothing.....what can I do? I also connected it to another cable form other computer working correctly and didn´t work. HELP!!

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January 4, 2011 at 11:21:21
"connected to the network and shows 2 networks"

Where does it show two networks. Are you doing some kind of NMAP to scan for networks?

"have only one modem and one router....and no internet access"

And, if you only have one network why do you have a modem and router? Routers are used to connect networks. You are probably seeing a network on the other side of your router. It may not be NATed properly.

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January 4, 2011 at 11:39:52
exactly what do you mean by you see two networks?

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April 1, 2011 at 02:21:59
I am having what I think is the same problem. I am running Windows 7 Ultimate 64 bit, my pc is connected through an ethernet cable to my router which has always worked fine on my old pc however sometimes Windows connects to one network which it calls Home Network 3 and everything is fine but other times it says it is connected to 2 networks, Home Network 3 and Home Network 4 which seems to cause issues with internet access. Any ideas how to resolve this would be appreciated.

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July 6, 2011 at 14:09:36
I am having the same problem. Even I am running Windows 7. It Seems like hardware or driver problem with either router or LAN card or a kind of conflict between them. Problem is that when this happens, it makes NAT not to work properly resulting loss of internet connectivity. A temperory solution I have discovered is to disable and then enable network adapter everytime it occures.

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